<template>
  <div class="back">
      <van-icon name="arrow-left" @click="$router.back()" />
  </div>
</template>
<style lang="scss" scoped>
.back{
  position: fixed;
  z-index: 99;
  top: 10px;
  left: 10px;
  border: 1px solid #fff;
  border-radius: 50%;
  padding: 3px;
  .van-icon-arrow-left{
      background: #fff;
      border-radius: 50%;
  }
}
</style>